Year	Number
2003	100
2004	100
2005	100
2006	100
2007	100
2008	100
2009	100
2010	100
2011	100
2012	100
2013	100
2014	99.523811340332
2015	98.5714263916016
2016	94.2857131958008
2017	98.0952377319336
2018	98.5849075317383
2019	99.5283050537109
2020	97.1698150634766
2021	95.7547149658203
2022	97.6415100097656